WBC super-bantamweight champion Leo Santa Cruz has been given a spot on the undercard of the Las Vegas showdown between Floyd Mayweather Jr and Manny Pacquiao.
Santa Cruz, who has been linked with a unification showdown with either Carl Frampton or Scott Quigg over the past 12 months, will compete in a non-title bout against an opponent yet to be named.
The Mexican joins two-weight Olympic champion Vasyl Lomachenko on the televised bill, with the Ukrainian scheduled to defend his WBO featherweight title against Gamalier Rodriguez.
The main event, which will become the most lucrative fight in the history of the sport, takes place at the MGM Grand on May 2.
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